Dopusrt import into collection not working

M:\Music\Data\Archive>type test.txt
M:\Music\Data\Archive\test.txt

M:\Music\Data\Archive>"%ProgramFiles%\GPSoftware\Directory Opus\dopusrt.exe" /col import /clear /create "DF" "test.txt"

M:\Music\Data\Archive>"%ProgramFiles%\GPSoftware\Directory Opus\dopusrt.exe" /col import /clear /create "DF" "M:\Music\Data\Archive\test.txt"

creates the collection "DF" but does not import ANYTHING. Also tried "/nocheck" - nothing.

Using DO 12.17

Content in hex:

00000000h: 4D 3A 5C 4D 75 73 69 63 5C 44 61 74 61 5C 41 72 ; M:\Music\Data\Ar
00000010h: 63 68 69 76 65 5C 74 65 73 74 2E 74 78 74 0D 0A ; chive\test.txt..

Any idea?

"%ProgramFiles%\GPSoftware\Directory Opus\dopusrt.exe" /col add "DF" "M:\Music\Data\Archive\test.txt"

command "add" works but "import" does not.

It seems to work OK here.

Before:

After:

Check you don't have the collection open in any tabs when doing the import, as that could complicate things.

That was the reason! Although I've pressed "refresh" they didn't appear.